Software Engineer (Intern, C#)

Our mission

Constructor’s mission is to enable all educational organisations to provide high-quality digital education to 10x people with 10x efficiency.

With strong expertise in machine intelligence and data science, Constructor’s all-in-one platform for education and research addresses today’s pressing educational challenges: access inequality, tech clutter, and low engagement of students.

Please send your resume in English only.

Interns are NOT eligible for equipment and other benefits as the position is temporary.

About the Role

We’re seeking a motivated Computer Science student to join our backend engineering team as a C# Backend Developer Intern . This is an excellent opportunity to learn backend development while working on real-world educational platforms that support learners, educators, and institutions worldwide.

Interns are NOT eligible for equipment and other benefits as the position is temporary.

What You’ll Learn & Do

Learn backend development using C# and .NET

Contribute to real backend services used in production

Assist in developing and maintaining REST APIs

Work with databases and learn how data is modelled and accessed

Participate in code reviews and learn clean coding best practices

Collaborate with frontend, QA, and product teams

Contribute to backend services supporting learning platform functionality and various integrations

Gain exposure to the full software development lifecycle

Required Qualifications

Current Computer Science / Software Engineering student

Experience with at least one programming language (C#, Java, Python, JavaScript, C++, or similar)

Basic understanding of object-oriented programming concepts

Interest in backend development and distributed systems

Good problem-solving skills and attention to detail

Ability to work collaboratively in a team environment

Eagerness to learn and grow as a software engineer

Good to Have (but not required)

Basic knowledge of C# and .NET

Familiarity with RESTful APIs

Introductory understanding of databases ( SQL or NoSQL)

Experience using Git or other version control systems

Basic knowledge of HTTP, JSON, and web concepts

What We’ll Teach You

C# and modern .NET backend development

Designing and implementing REST APIs

Working with databases and data access layers

Clean code and basic backend architecture principles

Debugging, testing, and performance basics

Collaboration in an Agile engineering environment

How production backend systems are built and maintained

Technology Stack You’ll Work With

Programming: C#, .NET 9.0

Backend: ASP.NET Core

Messaging & Events: Apache Kafka

Databases: PostgreSQL

Tools: Git, CI/CD pipelines, logging & monitoring tools

Testing: Unit and integration testing

Learning Opportunities

Mentorship from experienced backend developers

Exposure to scalable backend architectures

Hands-on experience with real production systems

Understanding how backend services support large platforms

Contribution to products used by students and educators globally

What We Offer For Interns

Internship Duration: from 2 months or more

Type of internship

100% remote

or hybrid in the office in Bremen (GER), Sofia (BG), Belgrade (SRB), Istanbul (TR), Sakarya (TR), Singapore (SGD)

What We Offer

💻 Choice of work equipment (e.g., laptop, monitor, etc.)

🇬🇧 English classes (iTalki – $130 monthly)

⏰ Flexible schedule (we usually work between 09:00/10:00 and 18:00/19:00 CET or EET)

👶 Newborn bonus (€500 per child)

🧠 Patent remuneration

🌴 Paid leave

🧑‍💻 Remote work in locations without our offices

Hybrid work in locations with offices (2 days in-office, 3 days remote)

Constructor fosters equal opportunity for people of all backgrounds and identities. We are led by a gender-balanced board committed to building a diverse and inclusive organisation where everyone can become their best self.

We do not discriminate based on age, disability, gender identity, sexual orientation, ethnicity, race, religion or belief, parental and family status, or other protected characteristics. We welcome applications from women, men and non-binary candidates of all ethnicities and socio-economic backgrounds.

We encourage people belonging to underrepresented groups to apply.

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